Citace podle APA (7th ed.)
Engstrom, T. W., & Mackenzie, R. A. (1976). Managing your time: Practical guidance on thre effective use of time. Zondervan Publ. House.
Citace podle Chicago (17th ed.)
Engstrom, Ted W., a R. Alec Mackenzie. Managing Your Time: Practical Guidance on Thre Effective Use of Time. Grand Rapids: Zondervan Publ. House, 1976.
Citace podle MLA (9th ed.)
Engstrom, Ted W., a R. Alec Mackenzie. Managing Your Time: Practical Guidance on Thre Effective Use of Time. Zondervan Publ. House, 1976.
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